Cannabis use during pregnancy might affect the way a child’s brain develops after birth, a new study says. Brain imaging of children exposed to cannabis in the womb has revealed patterns consistent with reductions in brain inflammation, researchers reported July 4 in the journal Nature Mental Health. Too much reduction in inflammation in a child’s brain could interfere with “pruning,” the natural process in which weak or unnecessary neural connections are shed as kids transition from early childhood to puberty, researchers said. “We see evidence that cannabis exposure may influence the developing brain, consistent with associations with mental health,” said researcher David Baranger, a postdoctoral fellow at Washington University in St. Louis. The research team earlier found that prenatal cannabis exposure appears to increase a child’s later risk for problems involving mental health, behavior and brain function, according to a 2020 report in JAMA Psychiatry. However, that earlier study couldn’t pinpoint whether this increased brain risk was due solely to weed exposure, or if it was also influenced by genetics or environment, researchers said. To draw a finer picture, researchers continued to analyze data from the clinical trial that formed the basis of the earlier findings. The trial involved nearly 12,000 children across the United States, and included brain imaging at ages 9-10 and 11-12. About 370 kids were exposed to cannabis before their mom…  read on >  read on >

Researchers have identified a gene that can trigger obesity, behavior problems and postpartum depression when missing or damaged. The finding could lead to new treatments for postpartum depression and overeating: The study in mice suggests the so-called “love hormone” — oxytocin — may ease symptoms.  Obesity and postpartum depression are major health problems worldwide. The new study, published July 2 in the journal Cell, is an outgrowth of research by scientists at Baylor College of Medicine in Houston and the University of Cambridge in the U.K.  They were studying two boys from different families who were severely obese. The boys had autism, anxiety and behavior problems triggered by smells or sounds. Both were missing a gene called TRP5.  They inherited the gene deletion from their mothers, who also were missing the gene. Both women were obese and had experienced postpartum depression. To find out if the missing TRPC5 gene was causing problems in the boys and their moms, researchers put genetic engineering to work. They produced mice with a defective version of the gene — called Trpc5 in mice. “What we saw in those mice was quite remarkable,” said study co-author Dr. Yong Xu, associate director for basic sciences at the USDA/ARS Children’s Research Center at Baylor College of Medicine in Houston. “They displayed very similar behaviors to those seen in people missing the TRPC5…  read on >  read on >

If you and your partner fall silent when vexing money issues arise, new research suggests you are not alone. A team from Cornell University found that the more stressed people were about their finances, the less likely they were to discuss those concerns with their romantic partners. The findings were published recently in the Journal of Consumer Psychology. “This is the first thing that fascinated us about this topic — that financially stressed individuals who need to have these conversations the most are the least likely to have them,” said study co-author Emily Garbinsky, an associate professor of professor of marketing and management communication at Cornell. Financial stress affects a staggering 70% of Americans, the researchers noted, and includes feelings of being overwhelmed with spending, struggling to meet financial obligations and worrying about money management. Even those who are well-off can struggle with financial anxiety, and this stress makes it tough to have constructive conversations about money with their partners. Not surprisingly, a common strategy is to avoid the sensitive subject completely, the researchers noted. Why? What they discovered was that this avoidance stems from the belief that financial conflicts with a partner are perpetual rather than solvable. In the study, scientists sifted through survey data from thousands of folks who either completed the Consumer Financial Protection Bureau’s National Financial Well-Being Survey or a survey…  read on >  read on >

Millions of Americans struggle to fall or stay asleep, a new survey finds. Some struggle more mightily than others: Roughly 12% of Americans polled said they have been diagnosed with chronic insomnia, the American Academy of Sleep Medicine (AASM) survey revealed. Who was the most likely to miss out on good sleep? Men (13%) were slightly more likely than women (11%) to have been diagnosed with chronic insomnia. Meanwhile, millennials reported the highest rate of chronic insomnia diagnosis (15%). How debilitating can insomnia be? Symptoms associated with insomnia include daytime fatigue or sleepiness; feeling dissatisfied with sleep; having trouble concentrating; feeling depressed, anxious or irritable; and having low motivation or low energy. “Chronic insomnia impacts not just how a person sleeps at night, but also how they feel and function during the daytime,” said AASM President Dr. Eric Olson. “Fortunately, there are effective treatment options for those who are living with chronic insomnia, and these treatments can significantly improve both health and quality of life.” Chronic insomnia can impair physical, mental and emotional health, and it can lead to increased risks for depression, anxiety, substance abuse, motor vehicle accidents, Alzheimer’s disease and type 2 diabetes, experts say. The most effective treatment for chronic insomnia is cognitive behavioral therapy, which combines behavioral strategies such as setting a consistent sleep schedule and getting out of bed when…  read on >  read on >

It may sound far-fetched, but new research suggests that living in dangerous neighborhoods could trigger an unintended health harm: higher smoking rates among residents. “High levels of neighborhood threat shape perceptions of powerlessness among residents, amplifying a general sense of mistrust, that can promote maladaptive coping behavior like smoking,” said researcher Michael Zvolensky, a professor of psychology at the University of Houston. According to the U.S. Centers for Disease Control and Prevention, the neighborhoods people live in can determine their health and well-being. While such factors are now understood as important factors in the onset, maintenance and relapse of substance use behavior, little research has evaluated what the researchers called “neighborhood vigilance” in terms of smoking rates, the researchers noted. Zvolensky’s team examined the role of neighborhood vigilance in terms of smoking and the severity of problems smokers thought they might face if they try to quit. Living in less secure neighborhoods was tied to smokers thinking it would be tough to quit, expecting “negative mood and harmful consequences,” Zvolensky said in a university news release. These types of neighborhoods were “also associated with more severe problems when trying to quit smoking,” he added. The findings support the notion that dangerous neighborhoods exacerbate “certain negative beliefs about abstinence and challenges in quitting,” Zvolensky said. Participants in the study included 93 adult smokers who were seeking…  read on >  read on >